"It is with our deepest sympathy and sadness that we have to advise, that we lost our brother, friend, family member, songwriter and guitarist, Gary Rossington, today," the band share online.
"Gary is now with his Skynyrd brothers and family in heaven and playing it pretty, like he always does."
Gary Rossington was the last remaining original member of Lynyrd Skynyrd. He died Sunday at the age of 71. (Roy Rochlin)
"Please keep Dale, Mary, Annie and the entire Rossington family in your prayers and respect the family’s privacy at this difficult time," the post said.
His cause of death has not yet been revealed. The "Free Bird" musician had an emergency heart procedure in 2019.
Rossington had a history of heart issues, and previously had surgery following a heart attack in 2015.